looking for the right cable fixing bolt for my rear derailleur

[hugo.m76]

I got on my bike one day and there was no tension on the rear derailleur cable. I checked and there was no bolt to hold the cable.

here is the user manual it came with: https://kampeerwijzer.files.wordpress.com/2016/09/um-5y40a-002-00-eng.pdf

I already bought one through Amazon and it was the wrong size.

If someone could point me in the right direction, it would be appreciated. Help!

 

[Pat "5mph"]

Hi and welcome to CC!
Make, model and a picture of said derailleur would help immensely: I have downloaded your manual, this information is not on the page you linked to.

 

[hugo.m76]

Hi and welcome to CC!
Make, model and a picture of said derailleur would help immensely: I have downloaded your manual, this information is not on the page you linked to.

this is part of my ongoing saga with my bike. this is all the information I have and was given. The only other identifying marks on the actual derailleur is Shimano 105 with a "D025" printed largely on the connecting piece to the frame. Even worse is that the company I bought it from have gone bankrupt and there are no specs available anywhere. It's a Nashbar Cyclocross, btw. The bike is great but it's been one problem after another. I'm still not sure what kind of BB I have, ha ha. My local bike shop guy is new and I have somewhat lost faith in him, I can't find any specs online, the company is nowhere to be found, and I've had to start *gasp* jogging to get exercise which has been actually pretty cool.

But I need help with this situation. I tried to add a photo where the missing bolt should be so I'm hoping it illustrates what my problem is and that the photos are not too potato.

 

[hugo.m76]

this is the bike in question. she really is a beauty imo.

 

[Pat "5mph"]

I can't find any specs online, the company is nowhere to be found,

Here is the Nasbar website.
Maybe give them a call, or send an email with the bike's picture, ask for specs?

 

[Flying Dodo]

The cable anchor bolt & plate are missing. Simplified example shown here. It's a standard M5 bolt.

 

[hugo.m76]

Here is the Nasbar website.
Maybe give them a call, or send an email with the bike's picture, ask for specs?

I've called them in the past to get information on the BB and the person on the other end basically told me they had no information, the company was bankrupt and no longer existed, and he was just there manning the phones for whatever reason, I don't remember exactly what he said about that. They're closed right now anyway but i'll try them again on Monday, I guess?

 

[hugo.m76]

The cable anchor bolt & plate are missing. Simplified example shown here. It's a standard M5 bolt.

this is the bolt I ordered and it was slightly too big. I don't know. I guess I'll make the rounds around the hardware shops on Monday.

https://www.amazon.com/gp/product/B004WW4FB2/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1

 

[PapaZita]

The bolt you ordered was for BR5700, which makes it a brake cable anchor bolt. That’s an M6 bolt, so yes, it’ll be one size (one millimetre) too big.

Something like this is probably exactly the right part:
https://www.ebay.com/itm/Shimano-105-RD-5800-Rear-Derailleur-Cable-Fixing-Bolt-Plate-RD-6800-usable/222613764442

However, as Flying Dodo says, just about any M5 bolt, about 8mm long, with a washer, will do the job. I’m not sure how easily available they’ll be in US hardware stores, being a metric size, but most bike shops will have a bucket full of them.

The D025 part is called the derailleur hanger. Not part of the derailleur itself, but the bracket that holds it to the frame. There are dozens of slightly different shapes and sizes. That number will be really handy should the original ever become bent or broken and need replacement.

 

[hugo.m76]

The bolt you ordered was for BR5700, which makes it a brake cable anchor bolt. That’s an M6 bolt, so yes, it’ll be one size (one millimetre) too big.

Something like this is probably exactly the right part:
https://www.ebay.com/itm/Shimano-105-RD-5800-Rear-Derailleur-Cable-Fixing-Bolt-Plate-RD-6800-usable/222613764442

However, as Flying Dodo says, just about any M5 bolt, about 8mm long, with a washer, will do the job. I’m not sure how easily available they’ll be in US hardware stores, being a metric size, but most bike shops will have a bucket full of them.

The D025 part is called the derailleur hanger. Not part of the derailleur itself, but the bracket that holds it to the frame. There are dozens of slightly different shapes and sizes. That number will be really handy should the original ever become bent or broken and need replacement.

that explains everything. thank you so much.